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Munich lab demonstrates diesel truck engine with barely measurable emissions
Date:12/6/2009

ar, at most to generate a fuel mist that burns very quickly and practically soot-free. Unfortunately, this also results in surging temperatures; a tricky situation, and finding the right balance between the three parameters of exhaust gas recirculation, boost pressure, and nozzle configuration proved challenging indeed.

Yet the engineers at the Chair of Internal Combustion Engines at the TUM are not content with fulfilling the Euro 6 Norm. They want to find out precisely how soot is formed in the split seconds during which the fuel droplets burn up. Simply placing a probe in the combustion chamber would disturb the combustion process. To surmount this problem the researchers constructed a tiny pipe that is shot into the center of the combustion chamber at lightning speed. The gas-sampling valve needs only one millisecond to take a sample before leaving the combustion chamber again. Using this method, 13 samples can be taken during a single ignition an ideal situation for studying the growth of soot particles and developing engines with even lower emissions.


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Contact: Markus Bernards
bernards@zv.tum.de
49-892-892-3388
Technische Universitaet Muenchen
Source:Eurekalert  

Page: 1 2 3

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